diff options
Diffstat (limited to 'drivers/gpu/drm/bridge/parade-ps8640.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/parade-ps8640.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c index 818704bf5e86..54723f068884 100644 --- a/drivers/gpu/drm/bridge/parade-ps8640.c +++ b/drivers/gpu/drm/bridge/parade-ps8640.c @@ -102,6 +102,7 @@ struct ps8640 { struct regulator_bulk_data supplies[2]; struct gpio_desc *gpio_reset; struct gpio_desc *gpio_powerdown; + struct device_link *link; bool pre_enabled; }; @@ -456,14 +457,36 @@ static int ps8640_bridge_attach(struct drm_bridge *bridge, return ret; } + ps_bridge->link = device_link_add(bridge->dev->dev, dev, DL_FLAG_STATELESS); + if (!ps_bridge->link) { + dev_err(dev, "failed to create device link"); + ret = -EINVAL; + goto err_devlink; + } + /* Attach the panel-bridge to the dsi bridge */ - return drm_bridge_attach(bridge->encoder, ps_bridge->panel_bridge, - &ps_bridge->bridge, flags); + ret = drm_bridge_attach(bridge->encoder, ps_bridge->panel_bridge, + &ps_bridge->bridge, flags); + if (ret) + goto err_bridge_attach; + + return 0; + +err_bridge_attach: + device_link_del(ps_bridge->link); +err_devlink: + drm_dp_aux_unregister(&ps_bridge->aux); + + return ret; } static void ps8640_bridge_detach(struct drm_bridge *bridge) { - drm_dp_aux_unregister(&bridge_to_ps8640(bridge)->aux); + struct ps8640 *ps_bridge = bridge_to_ps8640(bridge); + + drm_dp_aux_unregister(&ps_bridge->aux); + if (ps_bridge->link) + device_link_del(ps_bridge->link); } static struct edid *ps8640_bridge_get_edid(struct drm_bridge *bridge, |